30400343213 has 4 divisors (see below), whose sum is σ = 31448630940. Its totient is φ = 29352055488.

The previous prime is 30400343123. The next prime is 30400343221. The reversal of 30400343213 is 31234300403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31234300403 = 23 ⋅1358013061.

It can be written as a sum of positive squares in 2 ways, for example, as 4889225929 + 25511117284 = 69923^2 + 159722^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30400343213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30400343293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 524143820 + ... + 524143877.

It is an arithmetic number, because the mean of its divisors is an integer number (7862157735).

Almost surely, 2^30400343213 is an apocalyptic number.

It is an amenable number.

30400343213 is a deficient number, since it is larger than the sum of its proper divisors (1048287727).

30400343213 is a wasteful number, since it uses less digits than its factorization.

30400343213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048287726.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 30400343213 its reverse (31234300403), we get a palindrome (61634643616).

The spelling of 30400343213 in words is "thirty billion, four hundred million, three hundred forty-three thousand, two hundred thirteen".